Who said "If it moves, tax it. If it still moves, regulate it. If it stops moving, subsidize it."?

If demand and supply both increase

A) the equilibrium quantity definitely will increase and market clearing price definitely will decrease. B) the equilibrium quantity definitely will increase and market clearing price definitely will increase. C) the equilibrium quantity definitely will increase but the change in market clearing price cannot be determined without more information. D) market clearing price definitely will increase but the change in the equilibrium quantity cannot be determined without further information.

If you own a bond with a six percent coupon rate and new bonds are paying six percent, what will happen to your bond's market price?

What will be an ideal response?